Finding the Fourth Proportional to 16,891.34, 25,339.79 and 7,031.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,891.34 : 25,339.79 = 7,031.31 : x
2. Step 2: Convert to fraction form
   16,891.34/25,339.79 = 7,031.31/x
3. Step 3: Cross multiply
   16,891.34x = 25,339.79 × 7,031.31
4. Step 4: Simplify right side
   16,891.34x = 178,171,801.83
5. Step 5: Solve for x
   x = 178,171,801.83/16,891.34
6. Step 6: Final answer
   x = 10,548.12